A comparison of the numerical calculation results to predicted aerodynamic derivatives by a computational fluid dynamics(CFD) method and test data shows that the numerical calculation method based on an aerodynamic configuration generated in the conceptual de.

In order to instead the Nanhai Ziqiang Hao Platform, the modified production platform must meet the capability of it in the limited-space conditions of jack-up rig, and this make it difficult to general and piping.

The author points out that the rational factors of science come into being in three different respects: the first, subject is differentiated from object; the second, the individual is differentiated from the general; the third, the individual stands on the opposite in conception.

Improving methods to calculate estimator minimum variance of the finite population mean;

Realizing the Test of Bartlett Homogeneity of Variance for N Population Variance in Excel;

X_n be independent and identically distributed samples deawn from a population x with distribution F.

This paper introduces overall design,structural design and features of this bridge.

This paper describes the overall concept of “Tender Working out System for construction Supervision”from the views of work organization and technical management,including the expected goal of the system in use.

The experience, lessons and understandings to port design along the Canal at the south of the Lower Reaches of the Yangtze River including overall layout, vessel standard, design width of harbor basin and handling technology design, etc.

Suppose the totality is normal distribution,it is the premise of most of statistic analyses and examinations,but the calculations which use big stylebook to examine the totality normal distribution are much more complex,and it is hard to finish by handwork.

He rewrote the history concept between the totality and language.

They are totality, consciousness and social existence, ideology and truth.